Home / 420,028,991.60-629,854,530.60-161,158,175.60

Finding the Fourth Proportional to 420,028,991.60, 629,854,530.60 and 161,158,175.60

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Solution

The fourth proportional to 420,028,991.60, 629,854,530.60 and 161,158,175.60 is: 241,664,763.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,028,991.60 : 629,854,530.60 = 161,158,175.60 : x
  2. Step 2: Convert to fraction form
    420,028,991.60/629,854,530.60 = 161,158,175.60/x
  3. Step 3: Cross multiply
    420,028,991.60x = 629,854,530.60 × 161,158,175.60
  4. Step 4: Simplify right side
    420,028,991.60x = 101,506,207,044,890,368
  5. Step 5: Solve for x
    x = 101,506,207,044,890,368/420,028,991.60
  6. Step 6: Final answer
    x = 241,664,763.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.